Remote Procedure Call (RPC) is a protocol that a program can use to request a service from another program which is located on another computer in a network. Microsoft Remote Procedure Call (MS-RPC) is Microsoft's implementation of RPC. MS-RPC uses the NTLM (NT LAN Manager) authentication protocol. NTLMSSP (NT LAN Manager Security Support Provider) is a binary message format used by NTLM. A denial of service vulnerability has been reported in the Microsoft Windows Remote Procedure Call (RPC) service. A remote attacker can exploit this issue by specially crafting a malicious RPC request using the NTLMSSP authentication method. Successful exploitation could create a denial of service condition, causing the computer to becomes non-responsive and automatically restart.

Protection Overview

In order for the protection to be activated, update your Security Gateway product to the latest IPS update.For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R76 / R75 / R71 / R70

In the IPS tab, click Protections and find the Microsoft Windows RPC NTLMSSP Authentication Denial of Service (MS07-058) protection using the Search tool and Edit the protection's settings.